Radon Levels in Suffolk County Water: What Area Data Reveals About Your Household
Common Belief: Radon Levels in My Household Water Are Constant Year-Round
Government sampling in Suffolk County's aquifer 211MAGT took place over more than four years, from June 2012 to October 2016. The data shows radon-222 levels measured in 26 water samples from 25 different wells, all ranging between 44.0 to 300.0 pCi/L with a median at 106.0 pCi/L. This range reflects natural variation over multiple seasons and years within the region. Seasonal or multi-year variation can cause an individual well's radon level to fluctuate. Therefore, a single test of your household water is necessary to understand your specific radon level rather than relying on area averages or one-time measurements.
Common Belief: Radon in Suffolk County Groundwater Comes Mainly from Surface Contamination
Contrary to that belief, radon-222 in Suffolk County water primarily originates from natural radioactive decay of uranium present in underground rock formations. The tested wells from 200 to 900 feet deep access groundwater from aquifer 211MAGT, where radon dissolves into the water over time. This is a natural geologic process rather than contamination from surface sources. Understanding this helps clarify why radon is consistently detected in all sampled wells and why it may be present regardless of surface land use or recent events.
Common Belief: Radon is the Same Problem as Iron or Sulfur in Water
While iron and sulfur relate to taste, staining, and odors in water, radon is a radioactive gas that enters water naturally through rock decay. Unlike iron or sulfur, radon is a health-related concern due to its radioactive properties rather than an aesthetic issue. It requires specific testing to identify, as it cannot be reliably detected by smell or appearance. Suffolk County's government data shows radon detected in every measured sample but does not equate its presence with typical water quality nuisances like iron or sulfur.
Common Belief: Treatment Capacity is Based Solely on Household Size
Radon treatment capacity depends on daily water usage volumes rather than just the number of occupants in a household. Factors such as well pump rate, water usage patterns, and fixture types influence the needed treatment capacity. To effectively reduce radon in your household water, measure your daily water demand in gallons per day. This figure will guide matching your radon reduction equipment capacity to your actual consumption, ensuring performance aligns with your household’s water use.
Common Belief: Radon Treatment Requires Complex Maintenance and Frequent Service Calls
The Autotrol Radon in Water Filter system ships ready to configure and features straightforward maintenance protocols. Periodic servicing essential to maintaining performance generally involves routine filter replacement and system checks consistent with household water use volumes. This rhythm allows homeowners to anticipate and plan maintenance without frequent professional visits or complicated procedures. Clear documentation accompanies the product to support ease of upkeep.
Common Belief: All Water Fixtures and Appliances are Equally Affected by Radon
Radon primarily impacts water fixtures and processes involving water aeration or aerosol generation, such as showers and washing machines. These are points where dissolved radon gas can escape into the air, increasing indoor radon exposure. Conversely, fixtures like outdoor faucets or toilets, which do not aerosolize water, pose less concern regarding radon gas release. Understanding which parts of your household water system are more affected allows better focus when considering radon reduction solutions.
To manage radon in your Suffolk County household water effectively, start by measuring your daily water use. Using this demand figure, the Autotrol Radon in Water Filter can be selected and configured to address the radon concentration that testing reveals in your specific well or supply. This targeted approach applies the documented technology designed to reduce radon-222 concentrations from groundwater, helping you reduce potential exposure inside your home.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2016-10-18. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.
On record: U.S. Geological Survey sampling of Radon-222 in the 211MAGT aquifer (Suffolk County): 26 results from 25 wells, median 106.0 pCi/L, range 44.0-300.0 pCi/L; none above any federal threshold

